Assembly for correcting laser illumination emitted from a laser light source and method for producing said assembly

Abstract

The invention relates to an assembly for correcting laser illumination emitted from a laser light source, comprising a laser light source, which has linear emission sources that are arranged in a row in a first direction (X), whereby in addition, the emission sources that are arranged essentially in a row are at least partially offset relative to the row in a perpendicular direction (Y) in relation to the first direction (X). The assembly also comprises corrective elements, which can correct the laser illumination emitted from the laser light source in such a way that the spatial distortion of the laser illumination, caused by the offset position of the emission sources relative to the row, is compensated. According to the invention, the corrective elements are configured as a plate array that comprises a number of plate elements consisting of substantially plane-parallel plates that are transparent to the laser illumination used. At least two of the plate elements have a different thickness and the corrective mans is located in the laser illumination emitted from the laser light source, in such a way that the light beams emitted from at least two emission sources that are offset in relation to one another are subjected to a respective beam offset of a different magnitude by two different plate elements, thus compensating the distortion caused by the offset position of the emission sources. The invention also relates to a method for producing the aforementioned assembly.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates to an arrangement for correction of laser radiation emanating from a laser light source, including a laser light source which has linear emission sources which are located essentially in at least one row in a first direction, furthermore the emission sources located essentially in a row being offset in the direction perpendicular to the first direction at least partially to the row, and the arrangement furthermore having correction means which can correct the laser radiation emanating from the laser light source such that the three-dimensional distortion of the laser radiation caused by the offsetting of the emission sources to the row is equalized. Furthermore this invention relates to a process for producing this arrangement.[0002]An arrangement and a process of the initially mentioned type is known from U.S. Pat. No. 6,166,759. In the arrangement described, the so-called “smile” distortion, which generally occurs in laser di...

AI Technical Summary

Benefits of technology

[0005]There is provided, correction means that are made as a prism array. One such prism

Problems solved by technology

In this arrangement, which is known from the art, it has been found to be especially disadvantageous that the instrument used for bending the glass fibers has a relatively complex structure, because the glass fibers at some points must be deliberately bent by only a few microns or fractions of microns relative to other points.

The disadvantage here is that on the one hand for each of these plane-parallel plates a

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